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Chemistry in velocity: Investigating gas chemical properties in 4D

Published online by Cambridge University Press:  04 September 2018

Alvaro Hacar
Affiliation:
Leiden Observatory, Leiden University, P.O. Box 9513, 2300-RA Leiden, The Netherlands email: hacar@strw.leidenuniv.nl
Ewine van Dischoeck
Affiliation:
Leiden Observatory, Leiden University, P.O. Box 9513, 2300-RA Leiden, The Netherlands email: hacar@strw.leidenuniv.nl
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Abstract

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Gas chemistry is typically characterized comparing integrated intensities of different molecular species. With the advent of ALMA, chemistry is now resolved not only in space but also in velocity. When observed at high spectral resolution, most of the clouds, filaments, and cores in the solar neighbourhood show a complex internal structure with multiple velocity components. This intrinsic complexity should be disentangled in order to correctly interpret their chemical properties. We present the first results of the FIVE+ analysis technique combining both state-of-the-art structure reconstruction (2D), kinematic decomposition (+1D), and chemical analysis (+1D) in large molecular datasets.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2018 

References

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